Metastatic Prostate Cancer Cells In Mice (IMAGE) Rockefeller University Press Caption Red arrows indicate prostate cancer cells that have metastasized to the lymph nodes of a genetically engineered mouse. This process is blocked in mice lacking the enzyme Phlpp2. Credit Nowak et al., 2019 Usage Restrictions Reporters may freely use these materials in news coverage with the appropriate credit information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.